Bugs in ExtJS4 docs and, as a result, in designer version 2.0.0.000268

Hi,
Here is what I have found so far:

Autocreated function for load event of Ext.tree.Panel has next: function(treepanel, records, successful, operation, options), but according to real test and comment of rharbers here http://docs.sencha.com/ext-js/4-0/#!...nel-event-load should be something different